December weather forecastCon Son, Vietnam
December
Weather in December
December caps off the year with a descent into cooler temperatures in Con Son, providing a respite from the preceding warmth. The shift from November's transitional phase leads to decreased rainfall and cooler days. The volume of rainfall drops considerably to 118mm (4.65"), demonstrating a marked contrast to earlier months. While temperatures continue their fall similar to November, cooler sea temperatures are also noted. Essentially, December exhibits a blend of mild temperatures and less frequent rains, culminating in a pleasant month to conclude the year in Con Son, Vietnam.Temperature
The coldest period falls in January and December, when the average high-temperature reaches 29°C (84.2°F).Rainfall
In Con Son, during December, the rain falls for 10 days and regularly aggregates up to 118mm (4.65") of precipitation. Throughout the year, there are 166 rainfall days, and 2040mm (80.31") of precipitation is accumulated.Sea temperature
In Con Son, the average seawater temperature in December is 26.6°C (79.9°F).Note: Water temperatures in the range of 25°C (77°F) to 29°C (84.2°F) are warm and delightful, ensuring comfort during water activities over extended periods.
Daylight
The month with the shortest days is December, with an average of 11h and 36min of daylight.On the first day of December, sunrise is at 05:52 and sunset at 17:32. On the last day of the month, sunrise is at 06:07 and sunset at 17:45 +07.
Sunshine
June through December, with an average of 5h of sunshine, are months with the least sunshine.UV index
The month with the lowest UV index is December, with an average maximum UV index of 10. A UV Index estimate of 8 to 10 represents a very high health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: During December, 10 as the daily maximum UV index converts into the following advice:
With the absence of protection, damage to skin and eyes can occur instantly. Ensure precautions are taken. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Even on overcast days, a sunscreen with a sun protection factor of no less than 30 should be generously applied and reapplied, particularly after swimming or outdoor activities. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Con Son, Vietnam
- Average high temperature in December: 29°C
The warmest month (with the highest average high temperature) is April (33°C).
The months with the lowest average high temperature are January and December (29°C).
- Average low temperature in December: 22°C
The months with the highest average low temperature are April, May, June, July, August, September and October (24°C).
The coldest months (with the lowest average low temperature) are January, February and December (22°C).
Average rainfall in December
Con Son, Vietnam
- Average rainfall in December: 118mm
The wettest month (with the highest rainfall) is October (295mm).
The driest month (with the least rainfall) is March (43mm).
Average rainfall days in December
Con Son, Vietnam
- Average rainfall days in December: 10 days
The month with the highest number of rainy days is September (21 days).
The month with the least rainy days is February (5 days).
Average sea temperature in December
Con Son, Vietnam
- Average sea temperature in December: 26.6°C
The best month for swimming (with the highest average sea temperature) is May (29.8°C).
The coldest month (with the lowest average sea temperature) is January (24.9°C).
Average daylight in December /
Average sunshine in December
Con Son, Vietnam
- Average daylight in December: 11h and 36min
The month with the longest days is June (Average daylight: 12h and 36min).
The month with the shortest days is December (Average daylight: 11h and 36min).
- Average sunshine in December: 5h
The months with the most sunshine are February and April (Average sunshine: 7h).
The months with the least sunshine are June, July, August, September, October, November and December (Average sunshine: 5h).
Average UV index in December
Con Son, Vietnam
- Average UV index in December: 10
The months with the highest UV index are February, March, April, May, June, July, August, September and October (UV index 12).
The month with the lowest UV index is December (UV index 10).





